18787210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8501}}^1$

素因数の和:8538

約数の個数: 32

約数和(自身を含む): 38565072

約数和(自身を除く): 19777862

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 8501, 17002, 42505, 85010, 110513, 144517, 221026, 289034, 552565, 722585, 1105130, 1445170, 1878721, 3757442, 9393605, 18787210]

約数ペア:

[(1, 18787210), (2, 9393605), (5, 3757442), (10, 1878721), (13, 1445170), (17, 1105130), (26, 722585), (34, 552565), (65, 289034), (85, 221026), (130, 144517), (170, 110513), (221, 85010), (442, 42505), (1105, 17002), (2210, 8501)]